# #0b5df4

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#0b5df4`
- RGB: rgb(11, 93, 244)
- HSL: hsl(219, 91%, 50%)
- OKLCH: oklch(0.538 0.237 261.9)
- Relative luminance: 0.1443
- Nearest named color: Blue Ribbon (#0066ff, Δ 2.611) — https://brandsweets.com/colors/blue-ribbon
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0b5df4

## Tints & shades

- Tints (toward white): #246df5, #3c7df6, #508af7, #689af8, #80abf9, #99bbfa, #b1cbfb, #c5d8fc, #dde8fd, #f5f9ff
- Shades (toward black): #0a53db, #094cc8, #0843af, #073b9c, #063284, #05296b, #042158, #03183f, #02112c, #010713

## Harmonies

- Complementary: #f4a20b
- Analogous: #0bd1f4, #2e0bf4
- Triadic: #f40b5d, #5df40b
- Split-complementary: #f42e0b, #d1f40b
- Tetradic: #f40bd1, #f4a20b, #0bf42e

## Colors that go with #0b5df4

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #0b5df4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Zoom (https://brandsweets.com/colors/brands/zoom-us), Docker (https://brandsweets.com/colors/brands/docker-com), Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0b5df4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Toyota (https://brandsweets.com/colors/brands/toyota-com), WWE (https://brandsweets.com/colors/brands/wwe-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #0b5df4 in 7 real palettes, including Walmart's brand system and NBA's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 10 real palettes, including Headspace's brand system and Dropbox's brand system put Blue beside #0b5df4, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #0b5df4: 11 real palettes, including Nokia's brand system and Nivea's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Nivea (https://brandsweets.com/colors/brands/nivea-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #0b5df4: 7 real palettes, including Roblox's brand system and Webflow's brand system, as the supporting colour. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), NBA (https://brandsweets.com/colors/brands/nba-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #0b5df4: 6 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #0b5df4: 9 real palettes, including OnePlus's brand system and ASUS's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/dodgerblue

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 5.4:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #0a4ecd (7.04:1)
- On black (#000000): 3.89:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #246df5 (4.58:1); AA: background → #ebebeb (4.53:1); AAA: text → #5e94f7 (7.05:1)

## Brands using this color

- **Chase** — secondary #0060f0 (Δ 0.885) — https://brandsweets.com/colors/brands/chase-com
- **Headspace** — secondary #0061ef (Δ 1.145) — https://brandsweets.com/colors/brands/headspace-com
- **OnePlus** — accent #2660f5 (Δ 1.524) — https://brandsweets.com/colors/brands/oneplus-com
- **Grafana Labs** — primary #1b55f5 (Δ 1.64) — https://brandsweets.com/colors/brands/grafana-com
- **Grafana Labs** — accent #1b55f5 (Δ 1.64) — https://brandsweets.com/colors/brands/grafana-com
- **Zoom** — primary #0b5cff (Δ 1.669) — https://brandsweets.com/colors/brands/zoom-us
- **Zoom** — secondary #0b5cff (Δ 1.669) — https://brandsweets.com/colors/brands/zoom-us
- **Spectrum** — accent #005eff (Δ 1.682) — https://brandsweets.com/colors/brands/spectrum-com
- **Bose** — secondary #005bff (Δ 1.715) — https://brandsweets.com/colors/brands/bose-com
- **Wayfair** — secondary #1364f1 (Δ 1.722) — https://brandsweets.com/colors/brands/wayfair-com
- **Dropbox** — secondary #0061fe (Δ 1.755) — https://brandsweets.com/colors/brands/dropbox-com
- **Nokia** — accent #005aff (Δ 1.777) — https://brandsweets.com/colors/brands/nokia-com
- **Toyota** — accent #145fff (Δ 1.808) — https://brandsweets.com/colors/brands/toyota-com
- **Cisco** — secondary #0a60ff (Δ 1.821) — https://brandsweets.com/colors/brands/cisco-com
- **Nivea** — secondary #0f60ff (Δ 1.848) — https://brandsweets.com/colors/brands/nivea-com
- **IBM** — accent #0062fe (Δ 1.877) — https://brandsweets.com/colors/brands/ibm-com
- **Dropbox** — primary #0061ff (Δ 1.889) — https://brandsweets.com/colors/brands/dropbox-com
- **IBM** — secondary #0f62fe (Δ 1.948) — https://brandsweets.com/colors/brands/ibm-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/0b5df4-9ca5c4-df664e-211f2d-e9f0f1?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#0b5df4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.